Cod sursa(job #289637)
| Utilizator |  Roti Andrei andreir |
Data | 26 martie 2009 21:17:00 |
|---|---|---|---|
| Problema | Ridicare la putere in timp logaritmic | Scor | 0 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.32 kb |
#include<fstream.h>
ifstream fin("lgput.in");
ofstream fout("lgput.out");
unsigned long int power(unsigned long int n,unsigned long int p)
{
if(p==0)
return 1;
if(p&1)
return power(n,p/2)*power(n,p/2);
return n*power(n,p-1);
}
int main()
{
unsigned long int n,p;
fin>>n>>p;
fout<<power(n,p);
return 0;
}